Mechanical movement



H. P. GORMAN.

MECHANICAL MOVEMENT. APPLICATION FILED JAN. 10, 1920.

1,342,019. PfltentedJllne 1', 1920 HORACE P. GORMAN, OF NEW YORK, N, Y.

MECHANICAL -MO VEMENT.

Specification of Letters Patent.

PatentedJune 1, 1920.

Application filed January 10,: 1920. Serial No. 350,660.

To all whom z't may concern:

Be it known that I, HORACE P. GORMAN, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented a new and useful Mechanical Movement, of which the following is a specification.

This invention relates to new and useful improvements in mechanical movements, and more particularly to a mechanical movement employed in connection with electric fans.

The primary object of the invention is to provide a mechanical movement including friction disks, thus eliminating the use of gears and pinions commonly employed in electric fan constructions for causing the oscillation of the fan.

A further object of the invention is to provide a mechanical movement which will permit the disks forming a part thereof to slip with relation to the fan proper, and its supporting bracket, thus obviating the possibility of the fan being stopped or rendered inoperatii e by its contact with an obstruction.

A further obj ectof the invention is to provide means for moving the mechanical movement into and out of operation, in the event that it is desired to maintain the fan in a predetermined position.

A still further object of the invention is to provide means for effecting the adjustment of the arc of oscillationof the fan.

lVith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changesin the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed without departing from the spirit of the invention.

Referring to the drawing Figure 1 illustrates a fragmental side elevational view of a fan constructed in ac cordance with the present invention;

Fig. 2 is a rear elevational View of the same;

Fig. 3 is a sectionalview taken on line 3-3 of Fig. 1; and

Fig. 4 is a sectional view taken on line 44 of Fig. 1.

Referring to the drawing in detail, the reference character 5 designates the base of the fan which supports the motor 6, through the medium of the substantial U-shaped bracket member '7, pivotally connected to the upper extremity of the base 5 through the medium of the pin 8, passing through registering openings in the bracket 7 and base 5.

The motor 6 is of the usual construction, and includes the armature shaft 9 which supports the usual fan blades, not shown, the opposite end of the armature shaft extends through the rear of the motor 6, and supports the wheel 10, the same being keyed or otherwise secured to the shaft 9, so that movement of the shaft produces a relative movement of the wheel 10. I

Disposed between the motor 6 and the base of the bracket 7, are the spaced resilient arms 11 and 12, the arm 11 being provided with the inverted U-shaped bearing 13, in which operates the shaft 14, while the arm 12 supports the relatively large bearing member 15 which in turn provides a support for the shaft 16.

Mounted on one end of the shaft 14 is a friction disk 17 which normally engages the wheel 10 to receive motion therefrom, and as shown, the opposite end of said shaft 14 supports the wheel 18 which contacts with the periphery of the friction disk 19 supported on one end of the shaft 16. Thus it will be seen that movement of the wheel 10 is transmitted to the friction disk 19, through the disk 17 and wheel 18.

Each of these disks, includes a pair of spaced plates 20 and 21, to which are secured the disks 22, formed of copper or other suitable material, and between these disks 22 is supported a disk of fibrous material 23 which fibrous material contacts with the wheels 10 and 18. Thus it is obvious that slipping between the disk and wheels is prevented, under ordinary conditions to cause the efficient operation of the fan proper.

A right angled bracket, 24 is rigidly secured to one of the walls of the base 5 and provides a support for the pivoted arm 25 pivotally connected to' the bracket 24 through the medium of the pivot pin 26, so that the arm 25 is free to pivot in a vertical plane, but restricted from lateral movement due to its contact with the side walls of the bracket 24.

Rigidly secured to the shaft 16 is a substantially U-shaped supporting member 27 which embraces the edges of the adjustable arm 28, which in turn is provided with an elongated opening 29 to straddle the shaft 16, there being a nut 30 threaded on one end of the shaft 16, for securing the arm 28 to the supporting member 27.

The upper end of the arm 28 extends at an angle with relation to the body portion thereof, as indicated at 31, this angular portion being provided with an opening 32 adapted to accommodate the arm 25, so that rotary movement of the arm 28 causes a pivotal movement of the arm 25, to accomplish the oscillation of the fan proper.

If it becomes necessary to shorten the are of oscillation of the fan proper, it is obvious that by moving the arm 28 on its shaft 16, to bring the angular portion 31 of the arm to a position in close proximity with the pivot pin 26, thereby causing the motor proper to rotate at shorter intervals.

The resiliency of the material of which the arms 11 and 12 are formed, is suflicient to support the arms 11 and 12 in spaced relation at all times, however, the arm 32 is shown as extending through openings in the arms 11 and 12, and is provided with a nut on one end thereof, which nut forms a seat for the coiled spring 34: embracing a portion of the arm 32, the upper extremity of the arm 3 1 contacting with the under surface of the arm 12, to normally urge the same toward the arm 11.

A eamming member 35 is formed of any suitable sheet metal, and includes a lower slotted portion 36 formed by bending one extremity of one end of the material upon itself, to embrace a portion of the arm 11, the upper portion of the eamming member 35 being inclined as at 37 to present a camming surface, and as shown, this eamming surface 37 is disposed in a position directly under the extension 38 forming a part of the motor 6.

From the foregoing it is obvious that movement of the eamming member 35 to a position to bring the inclined surface 37 thereof into contact with the extension 38, causes the arm 11 to move in close proximity with the arm 12, to the end that the disk 17 is moved out of contact with the wheel 10.

The operation of the device is as follows Assuming that the eamming member 35 is in a position as indicated by Fig. 1 of the.

drawing, the friction disk 17 is in contact with the wheel 10 and when an electric current is supplied to cause the operation of the motor 6, the pulley wheel 10 is revolved which transmits motion to the disk 19 and its shaft 16, through the medium of the disk 17 and wheel 18.

The rotation of the shaft 16, causes the arm 28 to exert a lateral pressure on the arm 25 with the result that the arms 11 and 12 together with the motor supporting bracket 7, are moved laterally in one direction, the arms 25 now pivoting downwardly. Upon further rotation of the shaft 17, the arm 25 moves upwardly to a position as indicated by .Fig. 1 of the drawing, whereupon the arms 11, 12 and motor supporting bracket 7 are oscillated laterally, in the opposite direction.

This oscillation of the motor, together with the rotary movement of the fan blades supported on shaft 9, and which are not shown in the present drawing, causes at current of air created by the rotary movement of the fan blades to be directed in predetermined locations, controlled by the arc in which the motor 6 is moving.

Having thus described my invention, what I claim as new is 2- 1. In combination with the armature shaft of a motor and the supporting bracket thereof, a mechanical movement including a pair of spaced arms disposed between the motor and the supporting bracket, a wheel supported on one end of the armature shaft, disks supported by the arms, pivoted arms carried by the supporting bracket, means operated by one of the disks and embracing the pivoted arm to cause the oscillation of the motor, and means for moving the disks into and out of operation.

2. In combination with the armature shaft of a motor and the supporting bracket thereof, a mechanical movement including a pair of resilient arms having connection with the supporting bracket and zulapted to move therewith, a wheel on one end of the armature shaft, disks for receiving motion from the armature shaft, means operated by the disks for causing the oscillation of the motor, and means for moving the mechanical movement into and out of opera" tion.

3. In combination with the armature shaft of a motor and the supporting bracket thereof, a mechanical movement including a pair of spaced arms, a wheel on one end of the armature shaft, disks supported by the arms, one of said disks having contact with said Wheel whereby movement of the pulley wheel causes a relative movement of the disk, means operated by the movement of the disks for causing the oscillation of the motor, and a camming member supported by one of the arms for moving one .of the disks into and out of contact with the wheel.

1. In combination with the armature shaft of a motor and the supporting bracket thereof, a mechanical movement including a pair of spaced arms having connection with the bracket to move therewith, a wheel supported on one end of the armature shaft, disks supported by the arm, means for normally supporting one of the disks in contact with the wheel, means controlled by the disks for causing the oscillation of the motor, a eamming member having an inclined surface adapted to'contact with the motor for moving one arm with relation to the opposite arm for disconnecting one of the dis s with the wheel, and means for securing the camming member to one of the arms.

5. In combination with the armature shaft of a motor and the supporting bracket thereof, a mechanical movement including a pair of spaced arms, a wheel supported on one end of the armature shaft, disks supported by the arms, means for normally holding one of the disks in contact with the wheel, a shaft for supporting one of the disks, an adjustable arm mounted on the shaft, said arm having an opening in one extremity thereof, a pivoted arm having connection with a supporting bracket, said arm adapted to extend through an opening in the adjustable arm whereby rotary movement of the adjustable arm is restricted by the vertical movement of the pivoted arm to cause the oscillation of the motor, and means for moving the mechanical movement into and out of operation.

6. A mechanical movement including a pair of spaced resilient arms, means for connecting the arms to permit of a movement of one arm with relation to the other, disks supported on the arms, means for transmitting motion of one disk to the other, a pivoted arm, and an adjustable arm associated with the pivoted arm, said adjustable arm adapted to rotate to cause the pivoted arm to pivot vertically, and means for moving the arms of the pair of spaced arms with relation to each other.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

HORACE P. GORMAN.

WVitnesses:

EDWARD DURANT, CHAs. E. BEAR. 

